Sound absorbing panel



FIG. 1 is a rear view of a sound-absorbing board in accordance with our new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a right hand side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a front perspective view thereof. 

CLAIM The ornamental design for a sound absorbing panel, as shown and described. 